The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Classic 45-degree pattern, light version.
Source Luke McDonald
Background pattern originally a PNG drawn in Paint.net
Source Firkin
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Feel free to download this "Dark Wood" background texture for your web site. The background tiles seamlessly!
Source V. Hartikainen
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
Zero CC tileable hard cover cells book texture, 4k, scanned and made by me. CC0
Source Sojan Janso
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
A bit of scratched up grayness. Always good.
Source Dmitry
Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Prismatic Abstract Geometric Background 4
Source GDJ
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers